From eefd983a3e20c94912888312e23f97f93406fe78 Mon Sep 17 00:00:00 2001
From: Michele Cereda <cereda.michele@gmail.com>
Date: Sat, 9 Dec 2023 23:55:00 +0100
Subject: [PATCH] feat: quick improvements for kustomize

---
 knowledge base/kubernetes/kubeval.md   | 9 +++++++++
 knowledge base/kubernetes/kustomize.md | 9 +++++++++
 2 files changed, 18 insertions(+)

diff --git a/knowledge base/kubernetes/kubeval.md b/knowledge base/kubernetes/kubeval.md
index 5bb143b..75e5210 100644
--- a/knowledge base/kubernetes/kubeval.md	
+++ b/knowledge base/kubernetes/kubeval.md	
@@ -5,6 +5,7 @@ Validates one or more Kubernetes configuration files.
 ## Table of contents <!-- omit in toc -->
 
 1. [TL;DR](#tldr)
+1. [Usage](#usage)
 1. [Further readings](#further-readings)
 1. [Sources](#sources)
 
@@ -18,6 +19,14 @@ docker run -v "${PWD}/dir:/dir" 'garethr/kubeval' 'dir/file.yaml'
 scoop bucket add 'instrumenta' 'https://github.com/instrumenta/scoop-instrumenta' && scoop install 'kubeval'
 
 # Usage.
+kubeval 'manifest_file.yaml' || echo "Validation failed" >&2
+kubeval <(helm template …)
+kubeval <(kustomize build …)
+```
+
+## Usage
+
+```sh
 $ kubeval 'my-invalid-rc.yaml' || echo "Validation failed" >&2
 WARN - my-invalid-rc.yaml contains an invalid ReplicationController - spec.replicas: Invalid type. Expected: integer, given: string
 Validation failed
diff --git a/knowledge base/kubernetes/kustomize.md b/knowledge base/kubernetes/kustomize.md
index c50b9f4..914b591 100644
--- a/knowledge base/kubernetes/kustomize.md	
+++ b/knowledge base/kubernetes/kustomize.md	
@@ -10,6 +10,15 @@ FIXME
 
 ## TL;DR
 
+```sh
+# validation
+kustomize build ${PROJECT} | kubectl apply --filename - --validate --dry-run=client
+kubeval <(kustomize build ${PROJECT})
+
+# deployment
+kustomize build ${PROJECT} | kubectl apply --filename -
+```
+
 ## Further readings
 
 - [Website]